Racism I encounter

I have friends from all walks of life, their race means nothing to me. But I realize amongst my peers there is a lot of racial animosity, particularly my caucasian friends. Here is just a little sample of the racism I encounter amongst friends and aquaintances regularly.

"He started smoking Nigger-ports" Here this person is refering to Newport cigarettes which are notorious for being strong menthol cigarettes.

Just to set the plot, I was walking late at night with a friend when we saw a drunk driver hit a parked car, my friend responded: "God damn yan-yos". Yan-yo is a racial term used to label Latino immigrants.

"Its getting harder and harder to be an American in America, no one speaks your language, the ones that do are fucking niggers. I feel Im the immigrant, in a way Iam, Im the minority here: out numbered by the rest of them." I work with the person that said this, he is in no way, shape or form my friend.(for the record).

-Can I borrow a dollar?
-Sorry I dont have enough
-Stop being a jew and loan me a dollar

This was a conversation I saw between two people when I was getting some lunch the other day. The man who asked for a dollar later recieved it after his use of a racial analogy.

Why does all this racial animosity engulf America the way it does? It goes deeper than just racial slurs, people are seperating themselves by race, is it because they feel more comfortable amongst their own race? Why can't they be at ease in the prescence of people that are different from them? And my final question, although it is already becoming one of those irritating cliches we all kno and hate "Why can't just get along?".